Electrochemistry - Result Question 81
####29. The total number of moles of chlorine gas evolved is
(a) 0.5
(b) 1.0
(c) 2.0
(d) 3.0
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Solution:
- Moles of $NaCl$ electrolysed $=4 \times \frac{500}{1000}=2.0$
$\Rightarrow$ moles of $Cl _2$ produced $=1.0$
$$ 2 Cl^{-} \longrightarrow Cl _2+2 e^{-} $$